He is working in the field of science.

The study of the genome is an important field in genetics.

Genetics is a branch of biology that studies the function of genes and the laws of inheritance.

Health is very important.

His opinion is very important.

He is researching about a new energy source.

He is conducting research on a new energy source.

He is known as an expert in population genetics.

Cytogenetics is a science that studies the structure and function of chromosomes and genes.

He is known as a person with learning.